Reinforcing Deformed Steel Bars with Grade HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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Specification
OKorder is offering high quality Hot Rolled Rebars at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to Africa, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..
Label: to be specified by customer, generally, each bundle has 1-2 labels
Product Advantages:
OKorder's Hot Rolled Rebars are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: HRB400 – HRB500
Certificates: ISO, SGS, BV, CIQ
Length: 6m – 12m, as per customer request
Packaging: Export packing, nude packing, bundled
Grade | Technical data of the original chemical composition (%) | ||||||
C | Mn | Si | S | P | V | ||
HRB400 | ≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | 0.04-0.12 | |
Physical capability | |||||||
Yield Strength (N/cm²) | Tensile Strength (N/cm²) | Elongation (%) | |||||
≥400 | ≥570 | ≥14 | |||||
Theoretical weight and section area of each diameter as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m bar(kg) |
6 | 28.27 | 0.222 | 2.664 |
8 | 50.27 | 0.395 | 4.74 |
10 | 78.54 | 0.617 | 7.404 |
12 | 113.1 | 0.888 | 10.656 |
14 | 153.9 | 1.21 | 14.52 |
16 | 201.1 | 1.58 | 18.96 |
18 | 254.5 | 2.00 | 24 |
20 | 314.2 | 2.47 | 29.64 |
22 | 380.1 | 2.98 | 35.76 |
25 | 490.9 | 3.85 | 46.2 |
28 | 615.8 | 4.83 | 57.96 |
32 | 804.2 | 6.31 | 75.72 |
36 | 1018 | 7.99 | 98.88 |
40 | 1257 | 9.87 | 118.44 |
50 | 1964 | 15.42 | 185.04 |
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q4:What's your payment terms ?
A4:Mostly,we collect the money by T/T and LC at sight . We also accept time LC at 90/120 days sight.
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- Q: Are there any international standards for steel rebars?
- Yes, there are international standards for steel rebars. The most widely recognized and adopted international standard for steel rebars is the ISO 6935-2:2015 standard, which provides specifications for steel reinforcement bars used in concrete structures. Additionally, several other standards like ASTM A615/A615M, BS 4449, and DIN 488 are widely used and accepted worldwide for steel rebars. These standards ensure uniformity in quality, dimensions, and mechanical properties of steel rebars across different countries and facilitate international trade and construction practices.
- Q: How do steel rebars affect the ductility of reinforced concrete?
- Steel rebars can significantly enhance the ductility of reinforced concrete. The presence of rebars improves the tensile strength of concrete, which is otherwise weak in tension. By reinforcing the concrete with rebars, it becomes more resistant to cracking and can better withstand bending or stretching forces without fracturing. This increased ductility allows reinforced concrete structures to better absorb and distribute applied loads, making them more durable and resilient.
- Q: What are the guidelines for the proper spacing of steel rebars in slabs-on-grade?
- The guidelines for the proper spacing of steel rebars in slabs-on-grade typically vary based on the specific project requirements and the structural engineering design. However, some general guidelines suggest that rebars should be spaced apart at a distance equal to or less than three times the slab thickness. Additionally, the spacing between rebars should be consistent, and there should be enough clearance between the rebars and the edges or formwork to ensure proper concrete coverage and adequate reinforcement. It is crucial to consult the project's structural engineer and adhere to local building codes for specific guidelines.
- Q: Can steel rebars be used in underground parking garage construction?
- Yes, steel rebars can be used in underground parking garage construction. Steel rebars are commonly used in the construction of reinforced concrete structures, including underground parking garages. The rebars provide strength and reinforcement to the concrete, making it capable of withstanding the weight and pressure of the structure above. In addition, steel rebars offer excellent resistance to corrosion, which is especially important in underground environments where moisture and other corrosive elements may be present. Overall, steel rebars are a reliable and commonly used choice for reinforcing concrete in underground parking garage construction.
- Q: Can steel rebars be used in structures with limited accessibility?
- Indeed, structures with limited accessibility can utilize steel rebars. These rebars are frequently employed in reinforced concrete structures for their ability to enhance strength and durability. They possess versatility, enabling effortless transportation and installation, even in regions with restricted access. Under such circumstances, steel rebars can be conveniently cut, bent, and assembled on-site to precisely accommodate the structure's specific requirements. Furthermore, steel rebars can be prefabricated off-site and subsequently transported to the construction site, facilitating simpler handling and installation in areas with restricted entry. Consequently, steel rebars emerge as a fitting choice for structures located in remote areas or regions with limited available space.
- Q: What are the common challenges in handling steel rebars during construction?
- There are several common challenges in handling steel rebars during construction. One of the main challenges is the weight and size of the rebars. Steel rebars can be quite heavy and bulky, making them difficult to lift and maneuver on the construction site. This can pose a risk of injuries to the workers if proper lifting techniques and equipment are not used. Another challenge is the proper storage and organization of the rebars. Since rebars come in various lengths and sizes, it is important to have a well-organized storage area to keep them separated and easily accessible. Failure to do so can result in delays and inefficiencies during construction. Additionally, steel rebars are prone to rust and corrosion if not properly handled and stored. Exposure to moisture, rain, or even excessive humidity can cause the rebars to deteriorate, leading to weakened structures. Therefore, it is crucial to protect the rebars from these elements and store them in a dry and well-ventilated area. Furthermore, the placement and alignment of rebars within concrete structures can be challenging. It requires skilled labor and precision to ensure that rebars are correctly positioned according to the construction plans. Any errors in placement can compromise the structural integrity of the building, leading to safety concerns and costly repairs. Lastly, the transportation of rebars to the construction site can be a logistical challenge. Coordinating the delivery of rebars and ensuring they arrive on time and in the required quantities can be complex, especially in large-scale construction projects. Delays in receiving the rebars can cause project delays and additional costs. Overall, handling steel rebars during construction requires careful planning, proper storage, skilled labor, and adherence to safety protocols. By addressing these common challenges, construction projects can ensure the successful and efficient use of steel rebars.
- Q: What is the lifespan of steel rebars?
- The lifespan of steel rebars can vary depending on various factors such as the quality of the steel, environmental conditions, and maintenance practices. Generally, steel rebars have a long lifespan and are designed to provide structural reinforcement for many years. With proper installation and maintenance, steel rebars can last for several decades or even more than a century. However, factors like exposure to corrosive environments or lack of maintenance can significantly reduce their lifespan. Regular inspections, protective coatings, and proper drainage systems can help extend the lifespan of steel rebars and ensure their long-term durability.
- Q: What are the advantages of using corrosion-resistant steel rebars?
- There are several advantages of using corrosion-resistant steel rebars in construction projects. Firstly, corrosion-resistant steel rebars offer enhanced durability and longevity. Regular steel rebars are prone to corrosion when exposed to moisture and chemicals, which can significantly reduce their lifespan. However, corrosion-resistant steel rebars are specifically designed to resist corrosion, ensuring a longer service life for the structure. This is particularly beneficial in environments with high humidity, coastal areas, or regions with high levels of pollution. Secondly, the use of corrosion-resistant steel rebars helps in maintaining the structural integrity of the building. Corrosion can weaken the rebars, leading to structural failures and safety hazards. By using corrosion-resistant steel rebars, the risk of corrosion-induced structural damage is minimized, ensuring the safety of the occupants and the overall stability of the structure. Additionally, the maintenance costs associated with corrosion-resistant steel rebars are significantly lower compared to regular steel rebars. Structures built with regular steel rebars require frequent inspections, repairs, and maintenance to prevent and address corrosion issues. However, corrosion-resistant steel rebars reduce the need for such maintenance, resulting in reduced costs over the lifespan of the structure. Furthermore, corrosion-resistant steel rebars offer increased flexibility in design and construction. The properties of these rebars allow for the construction of thinner and lighter structures without compromising on strength. This can lead to cost savings in terms of materials and construction time, making corrosion-resistant steel rebars a cost-effective solution. Lastly, the use of corrosion-resistant steel rebars contributes to sustainable construction practices. By increasing the lifespan of the structure and reducing the need for maintenance, the environmental impact of the construction project is minimized. Additionally, the use of these rebars can contribute to obtaining green building certifications, promoting sustainable and environmentally-friendly construction practices. In conclusion, the advantages of using corrosion-resistant steel rebars include enhanced durability, improved structural integrity, reduced maintenance costs, increased design flexibility, and promoting sustainable construction practices.
- Q: What are the common surface patterns for steel rebars?
- Plain, deformed, and ribbed patterns are the common surface patterns for steel rebars. Plain rebars have a smooth surface and no patterns or indentations. They are used in applications where bendability or weldability is important, such as in reinforced concrete structures. On the other hand, deformed rebars have patterns or indentations on their surface, such as ribs, humps, or indentations. These patterns enhance bonding with the surrounding concrete and improve the grip between the rebar and concrete. This ensures better stress transfer and prevents slippage. Deformed rebars are widely used in construction projects, particularly in areas that require high tensile strength and bond strength. Ribbed rebars, a specific type of deformed rebar, have continuous longitudinal ribs along their length. These evenly spaced ribs provide additional anchorage and bond strength with the concrete. Ribbed rebars are commonly used in applications that require a higher level of bond strength, such as in seismic zones or structures subjected to heavy loads. In conclusion, the choice of surface pattern for steel rebars depends on the specific requirements of the construction project and the desired performance characteristics.
- Q: Can steel rebars be bent without breaking?
- Yes, steel rebars can be bent without breaking, as they possess excellent flexibility and ductility. They are designed to withstand bending forces during construction processes, making them suitable for various applications in reinforced concrete structures.
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Reinforcing Deformed Steel Bars with Grade HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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